I turned on a Laguna 1836 this past summer. The bed is welded steel but the legs are cast iron. Totally agree here. A spindle lock shouldn’t require constant hand contact to stay engaged. There are just too many activities where I need both hands while the spindle is locked. Using the indexing pin as a lock was inconvenient as it’s not very fast to engage or disengage. I also became frustrated that the speed wouldn’t go down as slow as I am used to. As I recall, 50rpm +/- was the slowest the lathe would go. There were a couple of other frustrations, but I attribute those more to complete familiarity and a long partnership with my differently branded lathe.